Stand-up paddle board



FIG. 1 is a front perspective view of a stand-up paddle board showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom side view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a back view thereof.

The broken lines shown in the drawing disclosure are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a stand-up paddle board, as shown and described. 